Comment by Aveza

For some reason this did not convert to blue alliance hat after my faction change

Comment by Anmaja

If you have created a bunch of toons on different servers and logged on to them at least once, you'll receive this item on that toon via mail (providing that any character on your account has gotten the achievement). If you plan to delete that toon you'll get the message: 'This character has mail or has a heirloom item in their inventory, bank, or void storage and cannot be deleted'. To be able to delete the character, you'll need to login and walk to the nearest mailbox to remove the hat.